5-7. Protective Functions
The PS-A power supply unit has 3 different protective functions (OVP, UVP, and OCP). Set the value for each of the
protective functions to fit the intended use of the unit.
Function Description
OVP
Turns the output off when the output voltage exceeds the set voltage for OVP.
UVP
Turns the output off when the output voltage falls below the set voltage for UVP.
OCP
Turns the output off when the output current exceeds the set current for OCP.
For the UVP and OCP functions, the software detects output voltage and current and turns the output
off if needed.
5-7-1. Display when protective functions are activated
OVP (Overvoltage protection)
UVP (Undervoltage protection)
OCP (Overcurrent protection)
5-7-2. Modification of the Set Values of Protective Functions
When modifying the set value of a protective function, press the PROTECT key and select the protective function to be
modified. Modify the set values by using the DIGIT keys
▲
▼
and the rotary encoder.
Operation procedure
1. Press the PROTECT key, which is then lit in
green. The protective function type is displayed
in the current indicator, and the modifiable digit
blinks in the voltage indicator.
2. Press the DIGIT keys
▲
▼
to select the digit to
be modified. Only the digit that is blinking can
be modified.
3. Use the rotary encoder to modify the set value.
4. After setting the protective function, press the
blinking ESC/KEY LOCK key to store the set
value of the protective function.
Press the green-lit PROTECT key to change the
display. The display changes in the following
order: OVP setting
l
UVP setting
l
OCP
setting.
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